EP2036708A2 - Rotor for a rotary tablet compactor - Google Patents

Rotor for a rotary tablet compactor Download PDF

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Publication number
EP2036708A2
EP2036708A2 EP08015747A EP08015747A EP2036708A2 EP 2036708 A2 EP2036708 A2 EP 2036708A2 EP 08015747 A EP08015747 A EP 08015747A EP 08015747 A EP08015747 A EP 08015747A EP 2036708 A2 EP2036708 A2 EP 2036708A2
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EP
European Patent Office
Prior art keywords
punch
rotor
guide
heads
holes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08015747A
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German (de)
French (fr)
Other versions
EP2036708B1 (en
EP2036708A3 (en
Inventor
Friedrich Meissner
Wolfgang Soltau
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Fette GmbH
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Fette GmbH
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Filing date
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Publication of EP2036708A2 publication Critical patent/EP2036708A2/en
Publication of EP2036708A3 publication Critical patent/EP2036708A3/en
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Publication of EP2036708B1 publication Critical patent/EP2036708B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/041—Guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams

Definitions

  • the invention relates to a rotor for a rotary tablet press according to the preamble of patent claim 1.
  • the typical rotor for a rotary press has a die plate and a lower and an upper punch guide for lower and upper punches, which cooperate with holes in the die plate.
  • the rotor is driven by a suitable drive motor about a vertical axis, and the powdery material filled into the die bores by a filling device is compressed by the press dies.
  • the pressing is done in at least one printing station, which has an upper and a lower pressure roller, which cooperate with the heads of the ram.
  • the ram are guided by suitable punch curves, including ejection of the compacts by the lower punch with the aid of appropriate cams.
  • Such rotors are out US 5,004,413 .
  • the invention has for its object to reduce the unfavorable interaction between the pressure roller and the punch head and to increase the same pressure holding time space for the number of pressing stations on the pitch circle, without increasing the equipment cost of a press rotor.
  • the punches are secured against rotation, ie they are guided exclusively axially in the guide bores.
  • an axial guidance is known per se.
  • the punch heads have flats on opposite sides, which are directed towards the adjacent punch heads.
  • the rotational position of the stamp which is determined by the exclusive axial guidance, thus allows the alignment of the flats on the punch heads to the adjacent punch heads out.
  • the advantage is achieved that the stamp can be closer together on a pitch circle and thus have a smaller distance from each other. It is therefore possible to arrange more pairs of punches on a pitch circle diameter. This is advantageous in terms of production output, since a larger number of compacts can be produced with the same rotor at the same speed than conventional rotors.
  • the punch shafts have a keyway and the guide holes contain a feather key or vice versa.
  • the shanks of the ram have a non-circular profile in cross section and the cross section of the guide holes is complementary.
  • a rotor 10 of which in Fig. 1 only a section is shown, has an upper punch guide 12 and a lower punch guide 14 and a die plate 16 between the upper and lower punch guide 12, 14.
  • all parts are a one-piece unit. It goes without saying that it can also be multi-part.
  • the die plate may consist of individual segments.
  • the upper punch guide 12 has receiving bores 18, and the lower punch guide 14 has receiving bores 20.
  • the punch guides 12, 14 lead in pairs upper punch 22 and lower punch 24, which cooperate with die holes 26 of the die plate 16 to compress powdered material in the die holes 26.
  • FIG. 3 Upper and lower punches 22, 24 and guide bushings 28, 30 are shown.
  • the pressing dies 22, 24 have a head 32, a shank 34 and a tool section 36. Only the tool portion 36 cooperates with the die bore 26 (hereinafter, only the upper punch 22 is treated, the lower punch 24 in the same way).
  • the head 32 is substantially standardized in its top. He works in the Figures 1 and 2 Not shown pressure rollers together, which press the upper punch 22 into the die bore 26 against the press material.
  • the shaft 34 is of non-circular cross-section.
  • FIG. 4 Cross-sectional shapes are shown by way of example. They show a triangular, a square and a three-section circular cross-section, the transitions are rounded.
  • the guide bushings 28, 30, which may consist of ceramic material and are glued into the receiving bores 18 and 20 respectively, have a cross-section of the shafts 34 complementary cross-section. The described cross sections therefore determine the rotational position of the punches 22, 24 in the punch guide 12 and 14, respectively.
  • Each punch 22, 24 or each guide bush 28 and 30 is associated with an upper sealing ring 38 and a lower sealing ring 40.
  • Fig. 6 At 60, the circumference of a pressure roller is indicated, under which the punch heads 32 are moved along, so that the punches 22 are pressed down into the die holes 26. As is particularly clear from this, the transition of the pressure roller circumference from one punch top to the next is almost uniform, so that only small impacts are generated, which lead to vibrations of the rotor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Rotor for a rotary tabletting press with upper and lower punch guides for upper and lower punches, operating in conjunction with the holes of a matrix disc located between the upper and lower guides, where the punch in the can move axially in the holes of the punch guides includes a head which interacts with the press pressure rolls. The punches are prevented from rotating in the punch guide holes but are guided axially in these holes. The head has flat sections (56) on opposite sides.

Description

Die Erfindung bezieht sich auf einen Rotor für eine Rundlauf-Tablettenpresse nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a rotor for a rotary tablet press according to the preamble of patent claim 1.

Der typische Rotor für eine Rundlaufpresse weist eine Matrizenscheibe sowie eine untere und eine obere Stempelführung für Unter- und Oberstempel auf, welche mit Bohrungen in der Matrizenscheibe zusammenwirken. Der Rotor wird von einem geeigneten Antriebsmotor um eine vertikale Achse angetrieben, und das von einer Fülleinrichtung in die Matrizenbohrungen eingefüllte pulverförmige Material wird von den Pressstempeln zusammengepresst. Das Verpressen geschieht in mindestens einer Druckstation, die eine obere und eine untere Druckrolle aufweist, die mit den Köpfen der Pressstempel zusammenwirken. In den übrigen Drehphasen werden die Pressstempel von geeigneten Stempelkurven geführt, unter anderem zum Ausstoßen der Presslinge durch die Unterstempel mit Hilfe entsprechender Steuerkurven. Derartige Rotoren sind aus US 5 004 413 , DE 101 59 114 A1 oder DE 10 2004 040 163 B3 bekannt geworden.The typical rotor for a rotary press has a die plate and a lower and an upper punch guide for lower and upper punches, which cooperate with holes in the die plate. The rotor is driven by a suitable drive motor about a vertical axis, and the powdery material filled into the die bores by a filling device is compressed by the press dies. The pressing is done in at least one printing station, which has an upper and a lower pressure roller, which cooperate with the heads of the ram. In the other phases of rotation, the ram are guided by suitable punch curves, including ejection of the compacts by the lower punch with the aid of appropriate cams. Such rotors are out US 5,004,413 . DE 101 59 114 A1 or DE 10 2004 040 163 B3 known.

Der Abstand der Pressstempel untereinander, die auf einem Teilkreis im Rotor paarweise angeordnet sind, wird im Wesentlichen von dem Durchmesser der Stempelköpfe bestimmt. Die Oberseite der Pressstempelköpfe, mit der die Druckrollen zusammenwirken, ist im Wesentlichen standardisiert. Zwischen den Eingriffslinien auf den Stempelköpfen besteht ein nicht unerheblicher Abstand, der zur Folge hat, dass ein ungleichmäßiger Übergang der Druckrolle von einem zum nächsten Stempel stattfindet. Dadurch entwickelt sich eine erhebliche Geräuschemission. Außerdem wird dadurch der Verschleiß an Stempel und Druckrolle verursacht.The distance of the press ram from each other, which are arranged in pairs on a pitch circle in the rotor, is essentially determined by the diameter of the punch heads. The top of the press die heads, with which the pressure rollers cooperate, is essentially standardized. There is a considerable distance between the lines of engagement on the punch heads, which has the consequence that an uneven transition of the Pressure roller takes place from one to the next stamp. This results in a considerable noise emission. In addition, this causes wear on the punch and pressure roller.

Der Erfindung liegt die Aufgabe zugrunde, die ungünstige Wechselwirkung zwischen Druckrolle und Stempelkopf zu verringern und bei gleicher Druckhaltezeit Platz für die Anzahl von Pressstationen auf dem Teilkreis zu erhöhen, ohne den apparativen Aufwand für einen Pressenrotor zu erhöhen.The invention has for its object to reduce the unfavorable interaction between the pressure roller and the punch head and to increase the same pressure holding time space for the number of pressing stations on the pitch circle, without increasing the equipment cost of a press rotor.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This object is solved by the features of patent claim 1.

Bei dem erfindungsgemäßen Rotor sind die Stempel gegen Drehung gesichert, d.h. sie werden ausschließlich axial in den Führungsbohrungen geführt. Eine axiale Führung ist jedoch an sich bekannt. Erfindungswesentlich ist jedoch, dass die Stempelköpfe auf gegenüberliegenden Seiten Abflachungen aufweisen, die zu den benachbarten Stempelköpfen hin gerichtet sind. Die Drehlage der Stempel, welche durch die ausschließliche Axialführung vorgegeben ist, ermöglicht mithin die Ausrichtung der Abflachungen an den Stempelköpfen zu den benachbarten Stempelköpfen hin.In the case of the rotor according to the invention, the punches are secured against rotation, ie they are guided exclusively axially in the guide bores. However, an axial guidance is known per se. However, it is essential to the invention that the punch heads have flats on opposite sides, which are directed towards the adjacent punch heads. The rotational position of the stamp, which is determined by the exclusive axial guidance, thus allows the alignment of the flats on the punch heads to the adjacent punch heads out.

Mit der Erfindung wird der Vorteil erzielt, dass die Stempel auf einem Teilkreis enger zusammenliegen können und mithin einen geringeren Abstand voneinander aufweisen. Es ist daher möglich, mehr Stempelpaare auf einem Teilkreisdurchmesser anzuordnen. Dies ist im Hinblick auf den Produktionsausstoß von Vorteil, da mit dem gleichen Rotor bei gleicher Drehzahl eine größere Anzahl von Presslingen erzeugt werden kann als bei konventionellen Rotoren.With the invention, the advantage is achieved that the stamp can be closer together on a pitch circle and thus have a smaller distance from each other. It is therefore possible to arrange more pairs of punches on a pitch circle diameter. This is advantageous in terms of production output, since a larger number of compacts can be produced with the same rotor at the same speed than conventional rotors.

Besonders vorteilhaft ist die günstigere Wechselwirkung zwischen Druckrolle und Stempelkopf durch den vergleichmäßigten Übergang der Druckrolle von einem Stempelkopf zum nächsten. Dadurch wird die Geräuschemission durch die geringeren Kraftschwankungen der Druckrolle kleiner. Ferner vermindert dies die Schwingungen der Rundlaufpresse. Schließlich wird auch der Verschleiß an den Stempeln und den Druckrollen reduziert.Particularly advantageous is the favorable interaction between the pressure roller and the stamp head by the uniform transition of the pressure roller from one stamp head to the next. As a result, the noise emission is reduced by the lower force fluctuations of the pressure roller. Furthermore, this reduces the vibrations of the rotary press. Finally, the wear on the punches and the pressure rollers is reduced.

Es sind verschiedene Möglichkeiten denkbar, einen Stempel axial in den Führungsbohrungen des Rotors zu führen und gegen Verdrehen zu sichern. Dies kann beispielsweise dadurch geschehen, dass die Stempelschäfte eine Passfedernut aufweisen und die Führungsbohrungen eine Passfeder enthalten bzw. umgekehrt. Besonders vorteilhaft ist, wenn nach einer Ausgestaltung der Erfindung die Schäfte der Pressstempel im Querschnitt ein unrundes Profil aufweisen und der Querschnitt der Führungsbohrungen komplementär ist. Dadurch wird nicht nur eine Orientierung in Umfangsrichtung erhalten mit der gewünschten Lage der Abflachungen, sondern derartige Stempelschäfte lassen sich auch mit Hilfe geeigneter Dichtringe besser abdichten.There are various possibilities conceivable to guide a punch axially in the guide holes of the rotor and secure against rotation. This can for example be done by the punch shafts have a keyway and the guide holes contain a feather key or vice versa. It is particularly advantageous if according to an embodiment of the invention, the shanks of the ram have a non-circular profile in cross section and the cross section of the guide holes is complementary. As a result, not only is an orientation in the circumferential direction obtained with the desired position of the flats, but such punch shafts can be better sealed with the help of suitable sealing rings.

Die Erfindung wird nachfolgend anhand von Zeichnungen näher erläutert.

  • Fig. 1 zeigt perspektivisch einen Ausschnitt von einem Rotor nach der Erfindung.
  • Fig. 2 zeigt einen Schnitt durch die Darstellung nach Fig. 1 entlang der Linie 2-2.
  • Fig. 3 zeigt eine Explosionsdarstellung von einem Stempelpaar mit Gleitbuchsen und Dichtungen.
  • Fig. 4 zeigt drei verschiedene Querschnittsprofile für die Pressstempel in den Fign. 1 und 2.
  • Fig. 5 zeigt die Draufsicht auf mehrere Pressstempel einer sonst nicht weiter gezeigten Rundlaufpresse.
  • Fig. 6 zeigt zwei benachbarte Pressstempel im Schnitt unter einer Druckrolle.
  • Fig. 7 zeigt ebenfalls eine Draufsicht auf einen Pressstempelkopf.
The invention will be explained in more detail with reference to drawings.
  • Fig. 1 shows in perspective a section of a rotor according to the invention.
  • Fig. 2 shows a section through the illustration Fig. 1 along the line 2-2.
  • Fig. 3 shows an exploded view of a stamp pair with sliding bushes and seals.
  • Fig. 4 shows three different cross-sectional profiles for the press dies in the FIGS. 1 and 2 ,
  • Fig. 5 shows the top view of several rams a otherwise not shown rotary press.
  • Fig. 6 shows two adjacent rams in section under a pressure roller.
  • Fig. 7 also shows a plan view of a press die head.

Ein Rotor 10, von dem in Fig. 1 lediglich ein Ausschnitt gezeigt ist, weist eine obere Stempelführung 12 und eine untere Stempelführung 14 auf sowie eine Matrizenscheibe 16 zwischen oberer und unterer Stempelführung 12, 14. Im gezeigten Fall sind alle Teile eine einteilige Einheit. Es versteht sich, dass sie auch mehrteilig sein kann. Insbesondere kann die Matrizenscheibe aus einzelnen Segmenten bestehen.A rotor 10, of which in Fig. 1 only a section is shown, has an upper punch guide 12 and a lower punch guide 14 and a die plate 16 between the upper and lower punch guide 12, 14. In the case shown, all parts are a one-piece unit. It goes without saying that it can also be multi-part. In particular, the die plate may consist of individual segments.

Die obere Stempelführung 12 weist Aufnahmebohrungen 18 auf, und die untere Stempelführung 14 weist Aufnahmebohrungen 20 auf. Die Stempelführungen 12, 14 führen paarweise Oberstempel 22 und Unterstempel 24, welche mit Matrizenbohrungen 26 der Matrizenscheibe 16 zusammenwirken, um pulverförmiges Material in den Matrizenbohrungen 26 zu verpressen.The upper punch guide 12 has receiving bores 18, and the lower punch guide 14 has receiving bores 20. The punch guides 12, 14 lead in pairs upper punch 22 and lower punch 24, which cooperate with die holes 26 of the die plate 16 to compress powdered material in the die holes 26.

Wie insbesondere in Fig. 2 zu erkennen, nehmen die Aufnahmebohrungen 18, 20 Führungsbuchsen 28, 30 auf. In Fig. 3 sind Ober- und Unterstempel 22, 24 und Führungsbuchsen 28, 30 dargestellt. Die Pressstempel 22, 24 weisen einen Kopf 32, einen Schaft 34 und einen Werkzeugabschnitt 36 auf. Nur der Werkzeugabschnitt 36 wirkt mit der Matrizenbohrung 26 zusammen (nachfolgend wird nur der Oberstempel 22 behandelt, wobei der Unterstempel 24 in gleicher Weise zu betrachten ist). Der Kopf 32 ist in seiner Oberseite im Wesentlichen standardisiert. Er wirkt mit in den Figuren 1 und 2 nicht gezeigten Druckrollen zusammen, welche den Oberstempel 22 in die Matrizenbohrung 26 hinein gegen das Pressmaterial pressen. Der Schaft 34 ist von unrundem Querschnitt.As in particular in Fig. 2 to recognize the receiving bores 18, 20 guide bushings 28, 30 on. In Fig. 3 Upper and lower punches 22, 24 and guide bushings 28, 30 are shown. The pressing dies 22, 24 have a head 32, a shank 34 and a tool section 36. Only the tool portion 36 cooperates with the die bore 26 (hereinafter, only the upper punch 22 is treated, the lower punch 24 in the same way). The head 32 is substantially standardized in its top. He works in the Figures 1 and 2 Not shown pressure rollers together, which press the upper punch 22 into the die bore 26 against the press material. The shaft 34 is of non-circular cross-section.

In Fig. 4 sind Querschnittsformen beispielhaft dargestellt. Sie zeigen einen dreieckigen, einen quadratischen und einen aus drei Kreisabschnitten zusammengesetzten Querschnitt, wobei die Übergänge gerundet sind. Die Führungsbuchsen 28, 30, die aus keramischem Material bestehen können und in die Aufnahmebohrungen 18 bzw. 20 eingeklebt sind, haben einen zum Querschnitt der Schäfte 34 komplementären Querschnitt. Die beschriebenen Querschnitte legen daher die Drehlage der Stempel 22, 24 in der Stempelführung 12 bzw. 14 fest. Jedem Stempel 22, 24 bzw. jeder Führungsbuchse 28 bzw. 30 ist ein oberer Dichtring 38 und ein unterer Dichtring 40 zugeordnet.In Fig. 4 Cross-sectional shapes are shown by way of example. They show a triangular, a square and a three-section circular cross-section, the transitions are rounded. The guide bushings 28, 30, which may consist of ceramic material and are glued into the receiving bores 18 and 20 respectively, have a cross-section of the shafts 34 complementary cross-section. The described cross sections therefore determine the rotational position of the punches 22, 24 in the punch guide 12 and 14, respectively. Each punch 22, 24 or each guide bush 28 and 30 is associated with an upper sealing ring 38 and a lower sealing ring 40.

Aus den Figuren 1 und 2 geht auch hervor, dass die Stempelköpfe 32 an der Seite Abflachungen 56 haben, die jeweils benachbarten Stempelköpfen zugekehrt sind. In den Figuren 5 bis 7 sind die Abflachungen etwas deutlicher herausgestellt. Man erkennt, dass die Abflachungen nicht diametral einander gegenüberliegen bzw. parallel verlaufen, sondern sich annähernd senkrecht zur Tangente am Teilkreis 58 erstrecken, auf dem die Stempel 22 bzw. 24 im Rotor 10 angeordnet sind. Mithin konvergieren die Abflachungen 56 gemäß Fig. 7 zur Mitte des Teilkreises, wie besonders deutlich in Fig. 7 dargestellt.From the Figures 1 and 2 also shows that the punch heads 32 on the side have flats 56, which are respectively facing adjacent punch heads. In the FIGS. 5 to 7 the flattenings are a little clearer. It can be seen that the flattenings are not diametrically opposed to each other or run parallel, but extend approximately perpendicular to the tangent to the pitch circle 58, on which the punches 22 and 24 in Rotor 10 are arranged. Thus, the flats 56 converge in accordance with FIG Fig. 7 to the middle of the circle, as particularly evident in Fig. 7 shown.

In Fig. 6 ist bei 60 der Umfang einer Druckrolle angedeutet, unter der die Stempelköpfe 32 entlang bewegt werden, damit die Stempel 22 nach unten in die Matrizenbohrungen 26 hineingedrückt werden. Wie hieraus besonders deutlich wird, ist der Übergang des Druckrollenumfangs von einer Stempeloberseite zur nächsten nahezu gleichmäßig, so dass nur geringe Stöße erzeugt werden, die zu Schwingungen des Rotors führen.In Fig. 6 At 60, the circumference of a pressure roller is indicated, under which the punch heads 32 are moved along, so that the punches 22 are pressed down into the die holes 26. As is particularly clear from this, the transition of the pressure roller circumference from one punch top to the next is almost uniform, so that only small impacts are generated, which lead to vibrations of the rotor.

Claims (3)

Rotor für eine Rundlauf-Tablettenpresse, der eine obere und eine untere Stempelführung für Ober- und Unterstempel aufweist, die mit Bohrungen einer zwischen Ober- und Unterstempelführung angeordneten Matrizenscheibe zusammenwirken, wobei die Stempel in Führungsbohrungen der Stempelführungen axial bewegbar sind und Köpfe aufweisen, mit denen Druckrollen der Tablettenpresse zusammenwirken, dadurch gekennzeichnet, dass die Pressstempel (22, 24) gegen Drehung gesichert in den Führungsbohrungen axial geführt sind und die Stempelköpfe (32) auf gegenüberliegenden Seiten Abflachungen (56) aufweisen, die zu den benachbarten Stempelköpfen (32) hin gerichtet sind.Rotor for a rotary tablet press, which has an upper and a lower punch guide for upper and lower punches, which cooperate with bores of a arranged between upper and lower punch guide die plate, wherein the punch in guide bores of the punch guides are axially movable and have heads with which Collaborate pressure rollers of the tablet press, characterized in that the press ram (22, 24) secured against rotation in the guide holes are axially guided and the punch heads (32) on opposite sides of flats (56) directed towards the adjacent punch heads (32) out are. Rotor nach Anspruch 1, dadurch gekennzeichnet, dass die Schäfte der Pressstempel im Querschnitt ein unrundes Profil aufweisen und der Querschnitt der Führungsbohrungen komplementär ist.Rotor according to claim 1, characterized in that the shanks of the ram have a non-circular profile in cross section and the cross section of the guide holes is complementary. Rotor nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Pressstempel (22, 24) auf einem Teilkreis (58) angeordnet sind und die Abflachungen (56) annähernd senkrecht zu dem Teilkreis (58) erstreckt sind.Rotor according to claim 1 or 2, characterized in that the pressing rams (22, 24) are arranged on a pitch circle (58) and the flattenings (56) are approximately perpendicular to the pitch circle (58).
EP08015747.2A 2007-09-13 2008-09-06 Rotor for a rotary tablet compactor Not-in-force EP2036708B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007043582A DE102007043582B3 (en) 2007-09-13 2007-09-13 Rotor for a rotary tablet press

Publications (3)

Publication Number Publication Date
EP2036708A2 true EP2036708A2 (en) 2009-03-18
EP2036708A3 EP2036708A3 (en) 2011-10-05
EP2036708B1 EP2036708B1 (en) 2013-07-31

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EP08015747.2A Not-in-force EP2036708B1 (en) 2007-09-13 2008-09-06 Rotor for a rotary tablet compactor

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US (1) US7824170B2 (en)
EP (1) EP2036708B1 (en)
DE (1) DE102007043582B3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2466963B (en) 2009-01-16 2011-01-19 Holland Ltd I A punch
DE102009031367B3 (en) 2009-07-02 2010-09-02 Fette Gmbh Press stamp for rotary tabletting press, has reflecting surface and transition area forming three-dimensional surface, where course of three-dimensional surface is described by mathematical function and height of stamp head is decreased
KR101552018B1 (en) * 2012-11-07 2015-09-09 오씨아이 주식회사 Apparatus for molding core of vacuum insulation panel and vacuum insulation panel manufactured thereby
DE102016113724B4 (en) * 2016-07-26 2019-01-17 Fette Compacting Gmbh Stamp for a rotary press

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE1577273A1 (en) * 1965-07-28 1970-03-19 United States Borax Chem Device for manufacturing detergent tablets
JPH0584277A (en) * 1991-08-08 1993-04-06 Kikusui Seisakusho:Kk Lever of rotary type powder forming machine
JP2004114135A (en) * 2002-09-27 2004-04-15 Kikusui Seisakusho Ltd Rotary type powder compression molding machine

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US2068619A (en) * 1935-09-13 1937-01-19 Stokes Machine Co Tablet-making machine
US4298563A (en) * 1978-10-19 1981-11-03 Ptx-Pentronix, Inc. Apparatus and method for compacting prismatic or pyramidal articles from powder material
DE8815075U1 (en) * 1988-12-03 1990-04-05 Manesty Machines Ltd., Liverpool, Lancashire, Gb
DE10159114B4 (en) * 2001-12-01 2004-02-19 Wilhelm Fette Gmbh Rotor for a tablet press
DE102004040163C5 (en) * 2004-08-19 2009-06-18 Fette Gmbh Rotary tablet press

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1577273A1 (en) * 1965-07-28 1970-03-19 United States Borax Chem Device for manufacturing detergent tablets
JPH0584277A (en) * 1991-08-08 1993-04-06 Kikusui Seisakusho:Kk Lever of rotary type powder forming machine
JP2004114135A (en) * 2002-09-27 2004-04-15 Kikusui Seisakusho Ltd Rotary type powder compression molding machine

Also Published As

Publication number Publication date
US7824170B2 (en) 2010-11-02
US20090252823A1 (en) 2009-10-08
EP2036708B1 (en) 2013-07-31
EP2036708A3 (en) 2011-10-05
DE102007043582B3 (en) 2008-11-27

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